Line data Source code
1 : /* Enumerate DWARF register numbers and their names.
2 : Copyright (C) 2005, 2006 Red Hat, Inc.
3 : This file is part of elfutils.
4 :
5 : This file is free software; you can redistribute it and/or modify
6 : it under the terms of either
7 :
8 : * the GNU Lesser General Public License as published by the Free
9 : Software Foundation; either version 3 of the License, or (at
10 : your option) any later version
11 :
12 : or
13 :
14 : * the GNU General Public License as published by the Free
15 : Software Foundation; either version 2 of the License, or (at
16 : your option) any later version
17 :
18 : or both in parallel, as here.
19 :
20 : elfutils is distributed in the hope that it will be useful, but
21 : WITHOUT ANY WARRANTY; without even the implied warranty of
22 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
23 : General Public License for more details.
24 :
25 : You should have received copies of the GNU General Public License and
26 : the GNU Lesser General Public License along with this program. If
27 : not, see <http://www.gnu.org/licenses/>. */
28 :
29 : #ifdef HAVE_CONFIG_H
30 : # include <config.h>
31 : #endif
32 :
33 : #include "libdwflP.h"
34 :
35 :
36 : int
37 29 : dwfl_module_register_names (Dwfl_Module *mod,
38 : int (*func) (void *, int, const char *,
39 : const char *, const char *,
40 : int, int),
41 : void *arg)
42 : {
43 29 : if (unlikely (mod == NULL))
44 : return -1;
45 :
46 29 : if (unlikely (mod->ebl == NULL))
47 : {
48 14 : Dwfl_Error error = __libdwfl_module_getebl (mod);
49 14 : if (error != DWFL_E_NOERROR)
50 : {
51 0 : __libdwfl_seterrno (error);
52 0 : return -1;
53 : }
54 : }
55 :
56 29 : int nregs = ebl_register_info (mod->ebl, -1, NULL, 0,
57 : NULL, NULL, NULL, NULL);
58 29 : int result = 0;
59 7958 : for (int regno = 0; regno < nregs && likely (result == 0); ++regno)
60 : {
61 : char name[32];
62 7929 : const char *setname = NULL;
63 7929 : const char *prefix = NULL;
64 7929 : int bits = -1;
65 7929 : int type = -1;
66 7929 : ssize_t len = ebl_register_info (mod->ebl, regno, name, sizeof name,
67 : &prefix, &setname, &bits, &type);
68 7929 : if (unlikely (len < 0))
69 : {
70 0 : __libdwfl_seterrno (DWFL_E_LIBEBL);
71 0 : result = -1;
72 0 : break;
73 : }
74 7929 : if (likely (len > 0))
75 : {
76 6554 : assert (len > 1); /* Backend should never yield "". */
77 6554 : result = (*func) (arg, regno, setname, prefix, name, bits, type);
78 : }
79 : }
80 :
81 : return result;
82 : }
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